Spring-shackle



Nio. 6I3,480. Patented Nov. I, |898.

H. C. SWAN.

SPRING SHACKLE.

(Application filed Apr. 12, 1897.)

(No Model.)

ma Nouns Perris co.. mom-uma.. WASHINGTON. u. cA l UNITED STATES PATENT' OFFICE.

HENRY C. SWAN, OF OSHKOSH, WISCONSIN.

SPRING-SHACKLE.

SPECIFICATION forming part of Letters Patent No. 613,480, dated November 1,1898. Application iiled April 12, 1897. Serial No. 631,683. (No model.)

To @ZZ whom it may concern:

Beit known that I, HENRY C. SWAN, of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented a new and useful Improvem ent in Spring-Shackles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciiication, in Which- Figure l is a front elevation showing the shackle in position upon the axle. Fig. 2 is a transverse section on the line II Il of Fig. l g and Fig. 3 is an elevation, partly broken away to show the connection of the parts.

My invention relates to spring-shackles,- and is designed to provide a shackle which may be formed of cast metal and which, while cheap of manufacture, shall be strong and neat in appearance.

In the drawings, 2 represents the body of the shackle, this body being in the shape of a skeleton bracket having its base 3 provided with depending lugs 4, which embrace the axle-stock 5. Integral with theupper portion of this bracket is cast the barrel 6 of the shackle, this barrel having an exteriorlytapered portion reduced in size and arranged of the barrel being internally squared to receive a squared portion 9 upon the bolt.

l0 10 are the depending links of the shackle, through which passes the ordinary bolt l1. The end of the spring is thus brought directly over the bearing on the axle or headblock, so that the strains are less severe.

I have shown the shackle as secured to the axle by a clip l2, passing through the skeleton bracket; but it may be secured by a bolt or otherwise, as desired. The tapering of the shackle-bearing is an important feature, as wear may thus be taken up, and the metal is strengthened at the shoulders, where. the greater strains are brought to bear, while heavy stock at the outer end, where the strain is less, is avoided.

The advantages of my invention will be apparent from'the foregoing description. Since the shackle may be very cheaply made of cast metal, the metal is distributed to give the greatest strength and lightness. The end of the spring is brought over the bearing,and lost motion of the parts may be easily taken up.

Many changes in the form and arrangement of the parts may be made without departure from my invention, since I claiml. A spring-shackle comprising a base or support, a barrel projecting laterally therefrom and provided with a tapered portion which is reduced in diameter, a tapered sleeve tting upon the tapered portion and subst-antially ushwith the remainder of the body, said sleeve having projecting ears or links arranged to receive a spring between them, and a bolt extending through the barrel and provided With a nut bearing upon the end of the sleeve.

2. A spring-shackle comprising a base or support, a barrel projecting laterally therefrom, said barrel being externally tapered, a

tapered sleeve fitting thereover and provided with links for attachment of a spring, and a bolt passing through the base and the barrel and having a squared portion fitting Within a corresponding recess in the base, the nut of this bolt contacting with the end of the sleeve.

3. A spring-shackle comprising a bracketshaped base arranged to rest upon and be secured to the axle, an integrally-formed barrel projecting laterally from the upper end thereof, said barrel being tapered exteriorly and provided with a longitudinal hole to receive a bolt, and a shackle-sleeve arranged to surround the barrel and being internally tapered and provided withI projecting links.

In testimony whereof I have hereunto set my hand.

HENRY c. swAN.

Witnesses JOHN H. BAEHR, DAUZIE W. GAERINGTON. 

